Best National Network
Culligan
A national water treatment brand with dealers and service coverage across the United States.
The 2026 Awards · Greater St. Louis
Honoring the best water companies in St. Louis
Six categories. One metro. Every award reflects our editorial criteria: local ownership, response time, included testing, transparent pricing, and service-area fit.
Local option: Jones Air & Water is a family-owned water treatment company in the St. Louis area that starts with a free in-home water test. Call (636) 899-1040.
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Thank you. Jones Air & Water will reach out shortly to schedule your free in-home water test. Prefer to talk now? Call (636) 899-1040.
The 2026 Category Winners
Six awards, one for every kind of buyer
Our editors honored six companies for the specific strength each is known for.
Best Non-Electric Technology
Kinetico
Maker of non-electric, twin-tank water softeners powered by the flow of water itself.
Best Dealer Availability
EcoWater
A national manufacturer whose systems are sold and serviced through authorized local dealers.
Best Home-Show Presence
RainSoft
A national brand frequently presented at home shows and through in-home demonstrations.
Best Manufacturer Heritage
Hague
An American manufacturer with a long history of building water treatment equipment.
Best For DIYers
Big-box DIY systems
Off-the-shelf softeners and filters stocked by major home improvement retailers.
Category names describe the strength each winner is recognized for. See how winners are chosen.
Awards are earned, not bought
Every category is judged on five editorial criteria: local ownership, response time, included testing, transparent pricing, and service-area fit.
Beyond the awards
What the judging desk reads
Awards night ends; the homework does not. Two publications stay open on the judges' desks all year. On the industry side, Water Quality Wire follows regulation, treatment technology, and the residential market with trade-press depth. On the homeowner side, The Home Water Report explains softening, filtration, and testing in plain language, and its buyer guides pair well with every category on this page.
Questions
Frequently asked questions
How are winners chosen?
Winners are chosen by our editorial team using five criteria: local ownership, response time, included testing, transparent pricing, and service-area fit. A category is only awarded when a clear winner emerges under those criteria. The full process is published on our methodology page.
Is Best Water Companies STL affiliated with the companies it features?
OwnersFirm publishes this site, and some providers mentioned here work with us; the line in the footer says so on every page. Every company named on this site is described factually and neutrally.
Do St. Louis area homes really need water treatment?
Many homes in the greater St. Louis region deal with hard water, and homes on private wells in outlying counties can face additional water quality concerns. A professional water test is the only reliable way to know what is in your water, which is why included testing is one of our award criteria.
How do I request a free water test?
Use the quote form near the top of this page to send your name, phone, and town to Jones Air & Water, or call (636) 899-1040. Category winners such as Culligan, Kinetico, EcoWater, RainSoft, and Hague can be reached through their own dealer networks.